Power

MAX15050/51: 4A, synchronous DC-DC regulators with integrated MOSFETs achieve 96% efficiency in 4mm2 package

1st December 2010
ES Admin
0
Maxim Integrated Products introduces the MAX15050/MAX15051, low-voltage (2.9V to 5.5V), 4A, synchronous DC-DC regulators in a 2mm x 2mm wafer-level package (WLP). These tiny step-down regulators integrate MOSFETs to simplify design, minimize EMI, and save board space. Operation from a fixed 1MHz switching frequency further reduces total solution size, allowing all-ceramic-capacitor designs. Offering peak efficiencies up to 96%, these point-of-load converters minimize power losses in applications ranging from portable devices to networking equipment.
The MAX15050 employs a pulse-skip mode to improve light-load efficiency, making it ideal for applications such as notebooks and single-cell portable devices. The MAX15051 operates with a forced PWM mode, allowing it to be used in telecom, networking, and base-station applications.

Other features include an enable input and power-good indicator for power sequencing, adjustable soft-start for controlled turn-on, and the ability to safely start up into a prebiased output.

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